Big Discount Reverse Circulation Drilling Hammers And Bits - Symmetric Casing Systems with Ring Bit – TDS

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We take "customer-friendly, quality-oriented, integrative, innovative" as objectives. "Truth and honesty" is our management ideal for China Round Extension Rod Factory, Air Compressors, Air Compressor Filter, It is our great honor to meet your demands.We sincerely hope we can cooperate with you in the near future.

Big Discount Reverse Circulation Drilling Hammers And Bits - Symmetric Casing Systems with Ring Bit – TDS Detail:

Adavantage

1. the concentric design is more reliable and less torque than the eccentric.

2. large impact power to make high speed drilling.

3. straighter hole.

4. easy to follow the casing.

5. reverse rotation and withdraw the pilot bit to use it for next holes.

A	B	C	D	E	F
Outer Dia. of Casing Tube	Inner Dia. of Casing Tube	Reamed Dia.	Min. Inner Dia. of Casing Shoe	Hammer Type	Drill Pipes
mm	mm	mm	mm		mm
114	101-103	125	93	TDS79	60
140	124-127	152	113	TDS98	76
146	127-132	154	115	TDS98	76
168	149-155	184	138	TDS122	76,89
178	159-165	194	148	TDS122	76,89
193	173-180	206	164	TDS139	114
219	199-206	234	185	TDS139,TDS180	114
244	224-231	273	219	TDS180	114

Order Guide: A+B+C+D+G

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